"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 防篡改
Case Name   : 检查错误信息是否给用户过多的提示
Create At   : 2022/3/25
Owner       : @daiguatutu
Description :
    1.设置参数并重启数据库enableseparationofduty=on
    2.创建新用户
    3.新用户使用错误的密码登录
    4.用不存在的用户登录数据库
    5.查看日志
    6.清理环境
Expect      :
    1.成功
    2.成功
    3.失败
    4.失败
    5.成功，记录了上面两次详细的错误原因
    6.清理环境成功
History     :
"""

import os
import unittest
import time

from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node
from yat.test import macro


class Security(unittest.TestCase):
    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.pri_node = Node(node='PrimaryDbUser')
        self.constant = Constant()
        self.common = Common()
        self.u_name = 'u_security_function_privilege_0005'
        self.u_name_01 = 'u_security_function_privilege_0005_01'
        self.default_value1 = self.common.show_param('enableSeparationOfDuty')

    def test_security(self):
        text = '-----step1：设置参数并重启数据库enableSeparationOfDuty=on; ' \
               'expect:成功-----'
        self.log.info(text)
        mod_msg = self.pri_sh.execute_gsguc('set',
                                            self.constant.GSGUC_SUCCESS_MSG,
                                            'enableSeparationOfDuty=on')
        self.assertTrue(mod_msg, '执行失败:' + text)
        result = self.pri_sh.restart_db_cluster()
        self.assertTrue(result, '执行失败' + text)

        text = '-----step2：创建用户 expect:成功-----'
        self.log.info(text)
        create_cmd = f"drop user if exists {self.u_name}," \
            f"{self.u_name_01} cascade; " \
            f"create user {self.u_name} password  '{macro.COMMON_PASSWD}';"
        msg = self.pri_sh.execut_db_sql(create_cmd)
        self.log.info(msg)
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.CREATE_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)

        text = '-----step3：新用户使用错误的密码登录; expect:失败-----'
        self.log.info(text)
        connect = f'-U {self.u_name} -W 123{macro.COMMON_PASSWD}'
        msg = self.pri_sh.execut_db_sql('select user', sql_type=connect)
        self.log.info(msg)
        self.assertIn(self.constant.INVALID_USERNAME_OR_PASSWD_TYPE, msg,
                      '执行失败:' + text)

        text = '-----step4：用不存在的用户登录数据库; expect:失败-----'
        self.log.info(text)
        connect = f'-U {self.u_name_01} -W {macro.COMMON_PASSWD}'
        msg = self.pri_sh.execut_db_sql('select user', sql_type=connect)
        self.log.info(msg)
        self.assertIn(self.constant.INVALID_USERNAME_OR_PASSWD_TYPE, msg,
                      '执行失败:' + text)
        time.sleep(5)

        text = '-----step5：查看日志; expect:成功，记录了上面两次详细的错误原因-----'
        self.log.info(text)
        sql_time = f"select sysdate + interval ' 1 minutes' as result;" \
            f"select sysdate - interval ' 3 minutes' as result;"
        result = self.pri_sh.execut_db_sql(sql_time)
        self.log.info(result)
        time_start = result.splitlines()[-2].strip()
        time_end = result.splitlines()[2].strip()
        sql_cmd = f"select username ,detail_info from " \
            f"pg_query_audit('{time_start}','{time_end}');"
        msg = self.pri_sh.execut_db_sql(sql_cmd)
        self.log.info(msg)
        user1_error = f'login db({self.pri_node.db_name})failed,' \
            f'authentication for user({self.u_name})failed'
        user2_error = f'login db({self.pri_node.db_name})failed,' \
            f'authentication for user({self.u_name_01})failed'
        self.assertIn(user1_error, msg, '执行失败:' + text)
        self.assertIn(user2_error, msg, '执行失败:' + text)

    def tearDown(self):
        self.log.info('-----step6：清理环境-----')
        text1 = '-----删除用户 expect:成功-----'
        self.log.info(text1)
        drop_cmd = f"drop user if exists {self.u_name} cascade;"
        drop_msg = self.pri_sh.execut_db_sql(drop_cmd)
        self.log.info(drop_msg)

        text2 = '-----修改参数enableSeparationOfDuty为初始值 expect:成功-----'
        self.log.info(text2)
        mod_msg1 = self.pri_sh.execute_gsguc('set',
                                             self.constant.GSGUC_SUCCESS_MSG,
                                             f'enableSeparationOfDuty='
                                             f'{self.default_value1}')
        restart_res = self.pri_sh.restart_db_cluster()

        self.log.info('-----断言tearDown执行成功-----')
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, drop_msg,
                      '执行失败:' + text1)
        self.assertTrue(mod_msg1, '执行失败:' + text2)
        self.assertTrue(restart_res, '执行失败:' + text2)
        self.log.info(f'-----{os.path.basename(__file__)} end-----')
